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Old 08-06-2008, 05:00 PM   #9 (permalink)
bbjsw10
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Location: Findlay,OH
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bbjsw10 - '91 Geo Metro Xfi
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Quote:
Originally Posted by MechEngVT View Post
If an injector kill doesn't shut off the engine quickly or cleanly it's either not completely killing the injectors or your injectors are leaky.

I would hesitate to use an ignition-only kill on an EFI car because that means your injectors will be spraying fuel through multiple crank revolutions with no ignition to burn it up. This can cause oil dilution, scoring of the cylinder walls, and wasted fuel. Even golf carts use a fuel shut off to kill the engine because the ignition ground causes the fuel/oil issues. Of course you could use BOTH an injector and ignition kill (like the key switch)...that would do the trick.
These are the reasons why I did an injector kill instead of ignition kill. I don't like the idea of unburnt gas sitting there. This how-to is on injector kill, that way the fuel gets burnt up then engine dies, no oil getting in oil or burning. FIRE BAD!!
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